2nd Jul 14 after some thought on having a remap or tuning box fitted to my 2012 1.6 blue drive diesel ix20 and with all the implications on warranty I went for the twin channel tuning box as suggested by yourself at DTUK I arrived Saturday morning about 3weeks ago after you fitted the box which only took 10mins max came the road test I noticed the all round improvement from the off the engine ran smoother and quieter the mid range torque was really impressive after trying different maps within the tuning box you could tell the difference between all the maps and there is a map there for most applications of driving you don’t get that with a remap on fuel economy driving to my usual seaside resort 40mile round trip average speed 55-60mph before box fitted max mpg was 62 after box was fitted driving as normal it returned 71mpg along with this was increased torque smoother engine the car just seemed happier went to Durham with 4 adults and myself driving and a wheelchair and other equipment in the boot so you can say it was fully loaded at speeds just above legal limit as per test drive so the engine had to work what a difference never batted a eyelid and returned 53mpg I would recommend to any one is unsure about tuning boxes have a word with Andrew there is no bull and is very easy to talk to and the advice is honest I am really pleased with the twin channel tuning box bought from DTUK at Tanfield lea Durham spot on from Norman